Longitudinal recording has been achieved on plastic tape coated with ferroelectric material. Reproduced levels were constant with frequency at the low end, but in the system used there was an upper frequency limit at about 1800 cps with a tape speed of 147 ips. On one of the media tested, the recordings decayed about 9 dB in 150 sec, at a humidity of 20%. Improvement of the high‐frequency limitation probably depends on better design of the reproducing head. More‐permanent recordings might be obtained with stronger recording fields, resulting in deeper penetration of the recording medium, or perhaps with the use of a material with more‐suitable characteristics.